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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
13/10/2016 |
Data da última atualização: |
13/12/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SOUZA, G. P. de; FIGUEIREDO, C. C. de; SOUSA, D. M. G. de. |
Afiliação: |
GÉSSICA PEREIRA DE SOUZA, UNB; CÍCERO CÉLIO DE FIGUEIREDO, UNB; DJALMA MARTINHAO GOMES DE SOUSA, CPAC. |
Título: |
Relationships between labile soil organic carbon fractions under different soil management systems. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Scientia Agricola, Piracicaba, v. 73, n. 6, p. 535-542, Nov./Dec. 2016. |
ISSN: |
0103-9016 |
DOI: |
http://dx.doi.org/10.1590/0103-9016-2015-0047 |
Idioma: |
Inglês |
Conteúdo: |
ABSTRACT: The study of labile carbon fractions (LCF) provides an understanding of the behavior of soil organic matter (SOM) under different soil management systems and cover crops. The aim of this study was to assess the effect of different soil management systems with respect to tillage, cover crop and phosphate fertilization on the amount of the LCF of SOM. Treatments consisted of conventional tillage (CT) and no-tillage (NT) with millet as the cover crop and a no-tillage system with velvet bean at two phosphorus dosages. Soil samples were collected and analyzed for organic carbon (OC), C oxidizable by KMnO4 (C-KMnO4), particulate OC (POC), microbial biomass carbon and light SOM in the 0.0-0.05, 0.05-0.10 and 0.10-0.20 m soil layers. The Carbon Management Index (CMI) was calculated to evaluate the impacts of soil management treatments on the quality of the SOM. The different LCFs are sensitive to different soil management systems, and there are significant correlations between them. C-KMnO4 is considered the best indicator of OC carbon lability. In the soil surface layers, the CT reduced the carbon content in all of the labile fractions of the SOM. The use of phosphorus led to the accumulation of OC and carbon in the different soil fractions regardless of the tillage system or cover crop. The application of phosphate fertilizer improved the ability of the NTsystem to promote soil quality, as assessed by the CMI. |
Palavras-Chave: |
Labile organic matter; Matéria orgânica instável; Phosphorus fertilization. |
Thesagro: |
Fertilidade do solo; Fósforo; Materia orgânica; Solo. |
Thesaurus Nal: |
soil organic matter. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/148675/1/scientia-agricola-v73-n6-p535.pdf
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Marc: |
LEADER 02274naa a2200265 a 4500 001 2054545 005 2016-12-13 008 2016 bl uuuu u00u1 u #d 022 $a0103-9016 024 7 $ahttp://dx.doi.org/10.1590/0103-9016-2015-0047$2DOI 100 1 $aSOUZA, G. P. de 245 $aRelationships between labile soil organic carbon fractions under different soil management systems. 260 $c2016 520 $aABSTRACT: The study of labile carbon fractions (LCF) provides an understanding of the behavior of soil organic matter (SOM) under different soil management systems and cover crops. The aim of this study was to assess the effect of different soil management systems with respect to tillage, cover crop and phosphate fertilization on the amount of the LCF of SOM. Treatments consisted of conventional tillage (CT) and no-tillage (NT) with millet as the cover crop and a no-tillage system with velvet bean at two phosphorus dosages. Soil samples were collected and analyzed for organic carbon (OC), C oxidizable by KMnO4 (C-KMnO4), particulate OC (POC), microbial biomass carbon and light SOM in the 0.0-0.05, 0.05-0.10 and 0.10-0.20 m soil layers. The Carbon Management Index (CMI) was calculated to evaluate the impacts of soil management treatments on the quality of the SOM. The different LCFs are sensitive to different soil management systems, and there are significant correlations between them. C-KMnO4 is considered the best indicator of OC carbon lability. In the soil surface layers, the CT reduced the carbon content in all of the labile fractions of the SOM. The use of phosphorus led to the accumulation of OC and carbon in the different soil fractions regardless of the tillage system or cover crop. The application of phosphate fertilizer improved the ability of the NTsystem to promote soil quality, as assessed by the CMI. 650 $asoil organic matter 650 $aFertilidade do solo 650 $aFósforo 650 $aMateria orgânica 650 $aSolo 653 $aLabile organic matter 653 $aMatéria orgânica instável 653 $aPhosphorus fertilization 700 1 $aFIGUEIREDO, C. C. de 700 1 $aSOUSA, D. M. G. de 773 $tScientia Agricola, Piracicaba$gv. 73, n. 6, p. 535-542, Nov./Dec. 2016.
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Embrapa Cerrados (CPAC) |
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Registros recuperados : 7 | |
3. | | SOUZA, G. P. de; FIGUEIREDO, C. C. de; SOUSA, D. M. G. de. Soil organic matter as affected by management systems, phosphate fertilization, and cover crops. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 51, n. 9, p. 1668-1676, set. 2016. Título em português: Matéria orgânica do solo influenciada por sistemas de manejo, adubação fosfatada e plantas de cobertura.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Cerrados; Embrapa Unidades Centrais. |
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4. | | SOUZA, G. P. DE; ZORZI, R.; SANTOS JUNIOR, J. de D. G. dos; SA, M. A. C. de; REIN, T. A.; SOUSA, D. M. G. de. Aplicabilidade de teste biológico de crescimento radicular na avaliação da sensibilidade de Jatropha curcas quanto a deficiência de cálcio e toxidez por alumínio no solo. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. 1 CD-ROM. FERTBIO 2010Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Cerrados. |
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5. | | COSTA, A. R. da; SATO, J. H.; RAMOS, M. L. G.; FIGUEIREDO, C. C. DE; SOUZA, G. P. de; ROCHA, O. C.; GUERRA, A. F. Microbiological properties and oxidizable organic carbon fractions of an oxisol under coffee with split phosphorus applications and irrigation regimes. Revista Brasileira de Ciência do Solo, v. 37, p. 55-65, 2013.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Cerrados. |
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7. | | SILVA, S. D. P. da; SOUZA, G. P. de; CHAVES, A. R. de M.; SILVA, M. A. da; SOUZA, R. R. de; CAVALCANTE, M. Z. B. Morphophysiological aspects of ornamental sunflowers cultivated in different growing seasons under semi-arid conditions. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 26, n. 4, p. 299-305, 2022.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Semiárido. |
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Registros recuperados : 7 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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